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#!/usr/bin/env bash
set -e
OPTIPNG=$(which optipng)
if ! [ -x "$OPTIPNG" ]; then
echo "optipng executable not found, please install" >&2
exit 1
fi
JPEGOPTIM=$(which jpegoptim)
if ! [ -x "$JPEGOPTIM" ]; then
echo "jpegoptim executable not found, please install" >&2
exit 2
fi
SCOUR=$(which scour)
if ! [ -x "$SCOUR" ]; then
echo "scour executable not found, please install" >&2
exit 3
fi
REQUIRED_SCOUR_VERSION="0.38.2"
SCOUR_VERSION=$(scour --version)
if dpkg --compare-versions $SCOUR_VERSION lt $REQUIRED_SCOUR_VERSION; then
echo "scour version $REQUIRED_SCOUR_VERSION or higher is required, found $SCOUR_VERSION" >&2
exit 3
fi
set +e
CHECK_DIR='../'
if [[ -d "$1" ]]; then
CHECK_DIR=$1
fi
function recursive_optimize_images() {
cd "$1" || return
DIR_NAME=${PWD##*/}
if [[ "$DIR_NAME" == "3rdparty" ]]; then
echo "Ignoring 3rdparty for image optimization"
return
elif [[ "$DIR_NAME" == "build" ]]; then
echo "Ignoring build for image optimization"
return
elif [[ "$DIR_NAME" == "cypress" ]]; then
echo "Ignoring cypress for image optimization"
return
elif [[ "$DIR_NAME" == "node_modules" ]]; then
echo "Ignoring node_modules for image optimization"
return
elif [[ "$DIR_NAME" == "tests" ]]; then
echo "Ignoring tests for image optimization"
return
elif [[ "$DIR_NAME" == "vendor" ]]; then
echo "Ignoring vendor for image optimization"
return
elif [[ "$DIR_NAME" == "vendor-bin" ]]; then
echo "Ignoring vendor-bin for image optimization"
return
fi
# Optimize all PNGs
for png in *.png
do
[[ -e "$png" ]] || break
$OPTIPNG -o6 -strip all "$png"
done
# Optimize all JPGs
for jpg in *.jpg
do
[[ -e "$jpg" ]] || break
$JPEGOPTIM --strip-all "$jpg"
done
# Optimize all SVGs
for svg in *.svg
do
[[ -e "$svg" ]] || break
mv $svg $svg.opttmp
$SCOUR --create-groups \
--enable-id-stripping \
--enable-comment-stripping \
--shorten-ids \
--remove-metadata \
--strip-xml-prolog \
--no-line-breaks \
-i $svg.opttmp \
-o $svg
rm $svg.opttmp
done
# Check all subfolders
for dir in */
do
[[ -e "$dir" ]] || break
if [[ -d "$dir" ]]; then
if git check-ignore $dir -q ; then
echo "$dir is not shipped. Ignoring image optimization"
continue
fi
recursive_optimize_images "$dir"
cd ..
fi
done
}
recursive_optimize_images "$CHECK_DIR"
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